package com.maigu.utils;

import java.util.Random;

public class KeyUtil {
    /*生成随机唯一主键 时间+随机数*/
    public static synchronized String genUniqueKey()
    {
        Random random=new Random();
       Integer number=random.nextInt(900000)+100000;
       return System.currentTimeMillis()+String.valueOf(number);

    }
}
